Generator tools

Generators produce values you should never invent yourself. Random identifiers, secrets, and codes need real entropy, not something a human would pick.

UUID

UUID v4 Generator

Generate cryptographically random UUID v4 identifiers.

UUID v1 Generator

Generate time-based UUID v1 identifiers.

UUID v7 Generator

Generate time-ordered UUID v7 identifiers (sortable, modern).

UUID v3 Generator

Generate deterministic UUID v3 identifiers from a namespace and name (MD5).

UUID v5 Generator

Generate deterministic UUID v5 identifiers from a namespace and name (SHA-1).

UUID v2 Generator

Generate DCE Security UUID v2 identifiers with a POSIX user or group ID. Legacy compatibility only.

UUID v8 Generator

Generate custom UUID v8 identifiers per RFC 9562 with user-defined blocks.

ULID

Generate ULIDs - 26-character sortable identifiers that combine a timestamp and random data.

Password

Password Generator

Generate strong random passwords with custom length and character sets.

Password Strength

Estimate the entropy and strength of a password.

Diceware Passphrase

Generate Diceware passphrases from the EFF Long word list. Strong, memorable, mathematically-verifiable entropy.

Random

Random Bytes

Generate cryptographically secure random bytes in hex or Base64.

NanoID

Generate NanoIDs - short, URL-safe, cryptographically random identifiers.

QR Code

QR Code Generator

Generate a QR code image from text or a URL, entirely in your browser.

QR Code Scanner

Scan QR codes with your camera or from an image file. Runs entirely in your browser.

Text

Lorem Ipsum Generator

Generate Lorem Ipsum placeholder text by paragraph, sentence, or word count. Deterministic seed, optional HTML tags.

About generator tools

UUIDs identify records without a central registry. Versions 1 and 7 embed time (sortable, good for databases), versions 3 and 5 hash a name (deterministic, good for idempotency), and version 4 is fully random (the safest default). All are generated using the browser cryptographic random source.

Password generators combine length, character classes, and exclusions to defeat brute force and dictionary attacks. A password is only as strong as the number of possible values it could take, so the tool shows the search space as you build one.

QR codes encode short strings (URLs, WiFi credentials, contact cards) into a scannable image. The generator lets you control size, error correction level, and foreground and background colors, then download the result as SVG or PNG.